Spirit
31.1 %
AirTran
13%
Allegiant
9.8 %
Delta
8.3%
US Airways
7%
Virgin
6.8%
Frontier
6.6 %
Southwest
6.5%
Alaska
6.2%
Republic
6 %
Industry average: 5.8%
Source: Bureau of Transportation Statistics, third quarter 2011 dataADVERTISEMENT
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